This is a three-layer inflatable pool specially designed for marine and freshwater environments, with overall dimensions of 6×4 meters. It features composite construction: the top layer is a 0.55mm dark brown EVA non-slip mat, the middle layer uses drop-stitch fabric to maintain structural shape, and the bottom layer employs blue mesh-reinforced PVC to ensure buoyancy stability. It can quickly establish a safe swimming area in open waters.